package com.wzp.server;

public class ListNode {
        int val;
        ListNode next;

    public ListNode() {
    }

    public ListNode(int val, ListNode next) {
            this.val = val;
            this.next = next;
        }

        @Override
        public String toString() {
            return "ListNode{" +
                    "val=" + val +
                    ", next=" + next +
                    '}';
        }
    }